等离子体子
氨生产
材料科学
光催化
催化作用
纳米技术
分解水
氨
光化学
氧化还原
表面等离子共振
电子转移
光电子学
化学
纳米颗粒
有机化学
冶金
作者
Weiyi Jiang,Haona Zhang,Yang An,Yuyin Mao,Zeyan Wang,Yuanyuan Liu,Peng Wang,Zhaoke Zheng,Wei Wei,Ying Dai,Hefeng Cheng,Baibiao Huang
出处
期刊:Small
[Wiley]
日期:2022-05-13
卷期号:18 (24)
被引量:6
标识
DOI:10.1002/smll.202201269
摘要
Direct ammonia (NH3 ) synthesis from water and atmospheric nitrogen using sunlight provides an energy-sustainable and carbon-neutral alternative to the Haber-Bosch process. However, the development of such a route with high performance is impeded by the lack of effective charge transfer and abundant active sites to initiate the nitrogen reduction reaction (NRR). Here, the authors report efficient plasmon-induced photoelectrochemical (PEC) NH3 synthesis on the hierarchical free-standing Au/Kx MoO3 /Mo/Kx MoO3 /Au nanoarrays. Endowed with energetically hot electrons and catalytically active sites, the plasmonic nanoarrays exhibit an efficient PEC NH3 synthesis rate of 9.6 µg cm-2 h-1 under visible light irradiation, which is among the highest PEC NRR systems. This work demonstrates the rationally designed plasmonic nanoarrays for highly efficient NH3 synthesis, which paves a new path for PEC catalytic reactions driven by surface plasmons and future monolithic PEC devices for direct artificial photosynthesis.
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